Fulica americana Mrs 27 Lake Jewell, Tilden Park, Contra Costa Co., Calif. - (Center) A few moments before after giving the "Rraw - paw" note three or four times. #4 readily left that area and approached us but with a little protesting. After investigating the spot I moved on, and #1 protestingly left the shelter of the cat-tails As soon as #1 was about in the middle of the lake #4 made a couple of notes and started across the water with head lowered also into the water, pursuing #1. The latter turned south and quickly #2 and #3 came out from their positions, with head lowered. About then #4 started patterning over the water, #1 took flight and alighting between #2 and #3, #1 then turned north, but was soon cut off by #4 who pattered over to intercept. #1 took flight again alighting and swimming over to and disappearing in the cat-tails at ①. #5 in the meantime was cutting across the lake, and #4 flying in pursuit of #1 nearly hit #5 as it came to alight. #5 moved over along the shore new position ① while #4 went to shore in the cove just to the north. - A few minutes later a coot, small like #1, gwent into the cat-tails at the point ② from which #1 was originally driven- - In position ③ one coot was playing with another - one mounted the other and they both went under. a moment later the smaller-bottom one of the two dived twice and